Fireproofing and waterproofing composition.



106. composmows, Examiner COATING R PLASl C BRUSS REFERENCE ,2 7 3, 2/3UNITED STATES PATENT OFFICE.

. CHARLES F. FBOHE, OF BUFFALO, NEW YORK, ASSIGNOB, TO SCIENTIFICPRODUCTS Be it known that I, CHARLES F. FBOHE, a mixture comprisingstarch, glue, alum and citizen of the United States, residing atBufsilicate of sodium is now permitted to stand falo, in the county ofErie and State of New twenty-four hours under normal tempera- 5 York.have invented new and useful Imture in order to permit. the same toseason. provements in Fireproofing and VVater- This mixture is thenstrained in order to reproofing Com osition, of which the followmove anylumps or large pieces therefrom, ing is a speci cation. after which tendrops of ammonia and one This invention relates to a composition ofounce of water are added thereto and thor- 10 matter which is to beapplied to the wood-' oughly mixed therewith while the entire work andtextile members of aeroplanes, aumixture is being heated, therebycompleting tomobile tops, curtains, window shades, artithe compositionready for use. ficial wall board and the like for the purpose Thiscomposition when finished is of a of filling the interstices in thesame, also to fluid character and can be applied to the ar- 15 renderthese 'materials water-proof, fireticle which is to be treated either bybrushproof and to shrink the same so they are ing the same thereon ordipping the article taut and smooth. into the composition so as toroduoe a thin It is the object of this invention to procoat on the same.When ap ied to the texduce a composition for this purpose whic tile orfabric wings of aerop anes it is desir- 20 is effective in operation andlow 1n cost and able to apply a plurality of coats to the surcan also bemanufactured from materials faces to be treated and to allow an intervalwhich are readily available and capable of of time for dryin betweensuccessive coats. being applied to the surfaces to be treated Inaeroplane wor it has been found satiswithout requiring special skill.factory to apply from four to five coats and 25 My improved com ositionembodies in its permit each coat to dry about three quarters manufacturethe fo lowing ingredients in of an hour before applying the followingsubstantially the proportions given: coat;

Starch-one-sixteenth of an ounce. In this composition the starch servespri- Klum-one-half of an ounce. marily as a filler for closing the poresor so zw'lueone-third of an ounce or one-third interstices in the wovenfabric or other surof a teaspoonful. -faces. The alum operates to shrinkthe fab- Silicate of sodium-six ounces. ric so that it is smooth andtaut and also Immoma-ten drops or one-sixteenth of renders the fabric orother material practi- 'an ounce. cally fire-proof. The glue in thecomposi- 35 -five and one-half ounces. tion operates as abinder whichretains the n the manufacture of this composition it various ingredientsin their divided and is preferable to proceed as follows: mixedcondition so that they are most efiec- One-sixteenth of an ounce ofstarch is tive. The silicate of sodium preserves the boiled in one andone-half ounces of water cloth or other material in its natural con- 40until the same assumes the condition of a dition, prevents deteriorationthereof, and

aste; one-half ounce of alum is dissolved also serves to render thesurface which is bein two ounces of water; one-third of an ing treatedwater-proof. The ammonia acts ounce of glue is boiled in one ounce ofwater as a solvent of the glue and also as ableach for a period of fiveminutesand six ounces which prevents spotting of the coated sur- 5 ofsilicate of sodium are boiled for a period face and also sterllizes andrenders the comof two minutes. position as a whole non-odorous. Thewater The boiled starch and glue are then boiled facilitates the mixingof the various ingreand stirred together until these ingredients dientsand also aids in rendering and mainare well dissolved and divided. Tothis mixtaining the composition in a fluid condition.

50 ture of starch and glue is then added the pre- This composition isvery eflicient for renviously dissolved alum, while the latter is deringthe parts treated thereby proof against hot. The previously boiledsilicate of sofire, water and deterioration and as the ma- COMPANY,INC., OF BUFFALO, NEW YORK, A CORPORATION OF NEW YORK.

FIBEPROOFING AND WATERPROOFING COMPOSITION.

No Drawing.

To all whom it may concern:

dium is now added to the starch, alum and Specification of LettersPatent.

Application filed December 7, 1917, Serial No. 205,944.

Patented July 23, 1918.

. Q glue and thoroughly mixed ilierewith. This terials are readilyavailable and no special skill is required for' its application it permits work of this character to be protected at low cost.

I I claim as my invention:

i 1. The hereindescribed composition of matter comprising starch, alum,glue, silicate of sodium, ammonia and water in substantially theproportions specified.

2. The hereindescribed composition of matter comprising starchone-sixteenth of an ounce, alum one-half of-an ounce, lue onethird of anounce, silicate of s ium six ounces, ammonia ten drops, and water fiveand one-half ounces.-

MR. CHARLES F. FROHE.

